Transmitting reciprocal to rotary motion



(No Model.)

D. J AMES.

TRANSMITTING REOIPROGAL T0 ROTARY MOTION. No. 285,943. PatntedOot. 2,1883.

' UNITED STATES PATENT Erica.

DAVID J. AMES, OF AUSTIN, ASSIGNOR OF ONE-HALF TO MOLAUGHLIN, SHELDON &0., OF OVAIONNA, MINNESOTA.

TRANSMITTING RECIPROCAL TO ROTARY MOTION.

SPECIFICATION forming part of Letters Patent No. 285,943, dated October2, 188?.

(No model.)

I? all, whom it may concern.-

- Be it known that 1, DAVID J. Auras, a citizen of the United States,residing at Austin, in the county of Mower'and State of Minnesota, havemade certain new and useful Improvements in. flransmitting Reciprocal toRotary Motion, of which the following is a full, clear, and exactdescription, reference being also had to the accompanying drawings, inwhich Figure 1 is a side elevation, and Fig. 2 is a plan View, of theapparatus. Fig. 3is an enlarged sectional side view, and Fig. 4 is an enlarged cross-sectional view, of the double-act ing ratchet and pawl,actuated ehainpulleys, I 5 and the operating-shaft. Fig. 5 is anenlarged detached perspective view of the pawl-supporting drum and oneof the pawls.

This device may be used in many different kinds of mechanicalappliances, but is more cs pecially adapted to the transmission of thereciprocal motion of the operatingbar of windmills to the rotary motionof feed-mills and similar machines.

A represents an upright post, either set up 2 5 for the purpose orforming part of the windmill-frame. Pivoted by its center at a to thispost A is a bar orlever, B, having an arm, 13,

secured to it at right angles, and to the outer end of this arm issecured thelower end of the 0 main operating rising-and-falling bar O ofthe windmill. The arm B? and lever B are suitably stengthened by bracesb, so that they will .retain their same relative positions.

D is a shaft mounted in asuitable frame, F, 3 5 at any distance awayfrom the p 0st A, as shown. This shaft may be the main driving-shaft ofany kind of machine it is desired to operate or if applied to feed-millsthe shaft 1) will be the spindle of the mill. Fixed upon this 40shaft 1) is a balance-wheel, F ,"Tand a sleeve or hub, G, the latterbeing provided with two independent sets of sockets, (I, (see Fig. 5,)in which two independent sets of pawls, c, are set and held by theirinner enlarged ends, so that 4.5 while free to oscillate slightly in thesockets they cannot be removed therefrom except endwise of the sockets.

H H are two sprocket or chain pulleys hav ing hollow interiors providedwith teeth 9, up on which the pawls c catch, as shown in Figs.

3 and 4-. These chain-pulleys are loose upon the shaft 1), but are heldin close proximity to the hub G by collars K K fixed to the shaft D. Bythis means either or both of the chainpulleys, being revolved in onedirection, will 5 5 engage the pawls with their teeth 9 and revolve thehub G- and shaft 1), but will slip over the pawls and not affect theshaft or hub when revolved in the opposite direction, so that if thechain pulleys be alternately oscillated upon the shaft 1) the latterwill be constantly revolved, as one of the chain-pulleys will berevolving the shaft forward during the backward move ment of the otherone.

h is a small rod connected loosely by one end to the upper end ofthelever B, and jointed at its other end to two similar rods, h 71?, oneleading to a chain, h, running over the chainpulley H, and the otherleading to a chain, it, running underneath the chain-pulley HF, asshown.

h is another small rod, connected loosely to the lower end of the leverB, and jointed at its other end to two small rods, h it leading to theopposite ends of the chains hf h from the 75 rods h h.

"When the bar 0 is forced downward, the upper end of the bar B will bemoved outward and the lower end inward, in the position shown in thedrawings. This will cause the rod hto draw the chain h, by means of therodif, over the pulley H and revolve the shaft 1) a short distance. Atthe same time the rod h" will. draw the chain 715' around the pulley Hfrom the opposite direction and revolve the pulley 8 5 backward, but notaffecting the shaft 1), as the pawls slip overthe teeth Then, when thebar O moves upward the upper end of the lever 13 is moved inward and thelower end outward, thereby causing the rod h, by means of the rod 71 todraw the chain it forward over i the chain-pulley H and revolve thelatter and the shaft 1) a short distance, while at the same time the rodit will draw the chain It backward beneath the pulley H, and therebyreverse the 9 5 motion of the latter, so as to be ready for the nextstroke. By this means the vibrating motion of the lever B will, by meansof the rods It, 71?, h, h, 7: and its and the chains 7% h, a1- tcrnatelyoscillate the pulleys H H upon the 2 I H fissile shaft D and revolve thelatter constantly, as the small amount of lost motion caused by thechange of stroke of the lever B will be overcome by the balance-wheel F.

-What I claim as new is-.

1. A shaft carrying a fixed collar having two independent sets of pawlspivoted thereon,two

- independent chain-pnlleys loose upon said shaft and. provided withratchet-teeth upon their interiors, chains h if, centrally-pivotedoscillating bar B, and a series of rods connecting the free ends of saidbar with said chains, substantially as and for the purpose set forth.

2. The combination of the shaft D, hub or collar G, pawls e,chain-pulleys H H having teeth g on their interiors, chains h if,coupling-rods 76- h h h main rods h h, centrallypivoted bar B, havingright-angled arm B, and vibrating arm 0, substantially as and for thepurpose set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses. v a

' DAVID J. AMES.

\Vitnesses:

J. M. GREENMAN, G. H. WILBOUR.

